<script type="text/javascript">
function show(){
$.ajax({
url: "/data/get.php?act=support_view",
data: "id=<?=$id['id']?>",
success: function(html){
$("#messages").html(html);
}
});
}
$(document).ready(function(){
show();
setInterval('show()',500);
});
</script>
$("#messages").scrollTop(90000);
setInterval(show,500);
<a name="scroll"></a>
<a name="scroll"></a>
setInterval(show,500);